#include<stdio.h>
#include<time.h>
#include<unistd.h>
#include<stdlib.h>
int main(int argc, char const *argv[])
{
    while(1){ 
    time_t T_1;
    T_1 = time(NULL);
    struct tm *l_time = localtime(&T_1);
    sleep(1);
    system("clear");
    printf("%d年%d月%d日\n",l_time->tm_year+1900,l_time->tm_mon+1,l_time->tm_mday);
    printf("%d时%d分%d秒\n",l_time->tm_hour,l_time->tm_min,l_time->tm_sec);
    }
    return 0;
}
